I paid for "Signature required" delivery once on an item and received an email that it has arrived. I was confused because the courier site showed a digital si

I paid for "Signature required" delivery once on an item and received an email that it has arrived. I was confused because the courier site showed a digital signature that wasn't mine and obviously I hadn't received the item. It turns out the driver, running late presumably, had been signing deliveries well before delivering them.